LED mirror/poster screen, with light and thin screen body, front maintenance, atmospheric design, fashion and novelty, and flexible installation method, can meet the installation requirements of various application scenarios. The control system adopts zero setting design, which is simple and convenient to operate, plug and play advertisements, and can be intelligently monitored and managed remotely through mobile APP. LED "mirror screen" can be spliced at will, which has the characteristics of large area and wide viewing angle, so it is more eye-catching and has stronger visual impact.